$600 for offroad lights instalation?

[www.miami3drenders.com]

Hi guys, just wondering if 6 hours of installation sounds fear to you to be done in a hummer dealer?
The guy in parts department said he needs 6 hours, around ($600) because he needs to drill the roof, dismount the dash, etc etc,
$450 of road lights + $600 work =$1050 for the freaking lights
not sure but looks a little "too many" hours.